miles is the Nike Cajun.
This vehicle would allow more instrumentation and weight than the Arcon vehicle.
However, the Nike Cajun motor cost is presently estimated at about $7, 500.
The large sample sizes calculated for the rotorchute system indicate that a smaller rocket-borne sampler
may be of interest for particular tests and for repetitive test programs.
The Arcas rocket manufactured by
Atlantic Research is capable of transporting a 12-pound payload to just over 200, 000 feet.
of the missile is 100 inches and the burnout weight of the motor is 24 pounds.
The maximum length
This rocket should be capable of
carrying a collector which would sample about 1/4 the amount indicated in the design calculation.
the Arcas motor is about $850 in lots of 150 units.
The cost of
However, the cost of the payload would probably not be much
less than for the Arcon.
Nomenclature
qi,
Diameter of the particle
microns
H
Altitude above sea level
feet
K
Inertia parameter
Kn
Cunningham correction factor
L
Half width of individual impactor
feet
Maximum half width of impactor at blade tip
inches
P
Absolute pressure
(ib force) /(sq ft)
r
Distance along blade from center line
feet
To
Radius of rotorchute or parachute
Vp
Velocity of air relative to the rotorchute blade
ft/sec
Vx
Velocity of descent of rotorchute with forward motion
ft/sec
Wa
Weight of air sampled
lb force
Wr
Total weight of descending vehicle plus sampler
lb force
p
Density of the air
lb mass/cu ft
Py
Density of the particles
lb mass/cu ft
Po
Density of air at sea level
0.0765 ib mass/cu ft
B
Absolute viscosity
lb mass/ft sec
max
‘
feet
References
1.
Air Force Cambridge Research Center, General Electric Missile and Space Vehicle Department,
2,
Atlantic Research Corporation, Quarterly Progress Report No.
3.
Atlantic Research Corporation, Quarterly Progress Report No. 2, ''Sampling the Upper Atmosphere
for Particulate Matter," September 25, 1959 to March 25, 1960, Contract No. AT(30-1)-2404.
“Atmospheric Model," December 1959.
1, "Sampling the Upper Atmosphere
for Particulate Matter," June 15 to September 25, 1959, Contract No. AT(30-1)-2404.